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Air Cylinder, Short Type, Standard, Double Acting, Single Rod CG3 Series

Air Cylinder, Short Type, Standard, Double Acting, Single Rod CG3 Series

A standard type short double action, single rod cylinder.
[Features]
· An air cylinder with an overall length reduced by up to 51 mm and weight reduced by up to 24% (compared to CG1).
· Female rod end available as standard.
*See the SMC catalog for specification details.
*Product pictures are representative images. CAD data is not supported for some model numbers.

(i)Caution

  • ■ SMC Product Line
    Webpages for products currently without individual pages on this site will be released on an ad-hoc basis.
  • Refer to the manufacturer's catalog for specification and material details.
  • Product images may be representative images. Refer to the manufacturer's catalog for shape details.​
  • CAD data is not supported for some model numbers.

PDF

Air Cylinder, Short Type, Standard, Double Acting, Single Rod CG3 Series Specifications

Air Cylinder, Short Type, Standard, Double Acting, Single Rod CG3 Series external appearance

Air Cylinder, Short Type, Standard, Double Acting, Single Rod CG3 Series external appearance

JIS symbol (rubber bumper)

JIS symbol (rubber bumper)

Specifications

Tube Inner Diameter (mm)20253240506380100
ActionDouble acting, single rod
LubricationNot required (non-lubricated)
FluidAir
Proof Pressure1.0 MPa
Maximum operating pressure0.7 MPa
Minimum operating pressure0.05 MPa
Ambient and Fluid TemperatureWithout auto switch: -10°C to 70°C (No freezing)
With auto switch: -10°C to 60°C (No freezing)
Piston Speed50 to 1,000 mm/s30 to 700 mm/s
Stroke Length Tolerance0 to +1.4 mm
CushioningRubber cushion
Mount Support TypeBasic type, foot type, rod-end flange type,
head-end flange type, clevis type
Allowable Kinetic
Energy
Rod end male thread0.2 J0.29 J0.46 J0.84 J1.4 J2.38 J4.13 J6.93 J
Rod end female thread0.11 J0.18 J0.29 J0.52 J0.91 J1.54 J2.71 J4.54 J

*Only use the cylinder within the allowable kinetic energy range. See the SMC catalog for details.

Stroke Table

Tube Inner Diameter (mm)Standard Stroke (mm)*
2025, 50, 75, 100, 125, 150, 200
2525, 50, 75, 100, 125, 150, 200, 250, 300
32
40
50
63
80
100

*Contact the SMC support center regarding intermediate strokes of 1‑mm increments. (Spacers are not used.)

Theoretical Output Table

 

(Unit: N)

 

Tube Internal Diameter
D (mm)
Rod Diameter
d (mm)
Operating DirectionPiston Area
(mm2)
Operating Pressure (MPa)
0.20.30.40.50.60.7
208OUT31462.894.2125.6157188.4219.8
IN26452.879.2105.6132158.4184.8
2510OUT49198.2147.3196.4245.5294.6343.7
IN41282.4123.6164.8206247.2288.4
3212OUT804160.8241.2321.6402482.4562.8
IN691138.2207.3276.4345.5414.6483.7
4014OUT1,257251.4377.1502.8628.5754.2879.9
IN1,103220.6330.9441.2551.5661.8772.1
5018OUT1,964392.8589.2785.69821,178.41,374.8
IN1,709341.8512.7683.6854.51,025.41,196.3
6318OUT3,117623.4935.11,246.81,558.51,870.22,181.9
IN2,863572.6858.91,145.21,431.51,717.82,004.1
8022OUT5,0271,005.41,508.12,010.82,513.53,016.23,518.9
IN4,646929.21,393.81,858.42,3232,787.63,252.2
10026OUT7,8541,570.82,356.23,141.63,9274,712.45,497.8
IN7,3231,464.62,196.92,929.23,661.54,393.85,126.1

*Theoretical output (N) = Pressure (MPa) × Piston area (mm2).

Weight Table

 

(Unit: kg)

 

Tube Inner Diameter (mm)20253240506380100
Basic weightBasic type0.090.140.200.320.660.921.752.74
Rod-End Long Type (G)0.100.150.210.340.700.971.842.85
Rod End Female Thread Type (F)0.080.120.190.290.600.851.612.53
Additional Bracket WeightFoot type0.110.130.160.220.480.720.961.75
Flange type0.080.100.140.200.340.500.711.35
Clevis Type0.050.080.150.230.400.680.711.28
Pivot bracket0.080.090.170.250.440.800.981.75
Single Knuckle Joint0.050.090.090.100.220.220.390.57
Double knuckle joint (with pin)0.050.090.090.130.260.260.641.31
Additional weight per 50 strokes0.050.070.090.130.190.230.310.43
Additional Switch Magnet Weight0.010.010.010.010.010.020.020.04

Calculation Example) CDG3FN20-100 (built-in magnet, flange type, ø20 mm, 100 stroke)

  • Basic weight: 0.09 kg (basic type, ø20 mm)
  • Additional bracket weight: 0.08 kg (flange type)
  • Additional stroke weight: 0.05 kg / 50 mm
  • Air cylinder stroke: 100 mm
  • Additional switch magnet weight: 0.01 kg

0.09 + 0.08 + 0.05 × (100/50) + 0.01 = 0.28 kg

Mounting Procedure

Mounting procedure for clevis: (ø20 to 63 mm)

Mounting procedure for clevis: (ø20 to 63 mm)

Mounting procedure for clevis: (ø80 to 100 mm)

Mounting procedure for clevis: (ø80 to 100 mm)

Mounting procedure for rod end nut

Mounting procedure for rod end nut

  1. *1: Tighten the clevis bracket mounting bolts to the proper tightening torques detailed below.
      ø20 mm: 1.5 N·m, ø25 to 32 mm: 2.9 N·m, ø40 mm: 4.9 N·m
      ø50 mm: 11.8 N·m, ø63 to 80 mm: 24.5 N·m, ø100 mm: 42.2 N·m
  2. *2: Mount the flange type and foot type so that the distance 't' (clearance) of the rod end nut is at least 1 mm.
  3. *3: The direction of the rod end nut (for male thread) when mounting should be with the hexagonal part at the rod end. Apply the wrench to the hexagonal part.

Diagram

With rubber bumper diagram

With rubber bumper diagram

NumberNameMaterialNotes
1Rod coverAluminum alloyHard anodized aluminum
2Tube CoverAluminum alloyHard anodized aluminum
3PistonAluminum alloyChromate
4Piston rodCarbon steel*Hard chrome plated*
5BushingResin/Copper alloy (Multiple layers)-
6Bumper AResin-
7Damper BResin-
8Wear RingResin-
9Rod End NutCarbon steelNickel plated
10Rod sealNBR-
11Piston SealNBR-
12Tube GasketNBR-

*For cylinders with auto switches, a magnet is attached to the piston.
*The material for ø20 mm and ø25 mm cylinders with auto switches is stainless steel.

Dimensions

 

(Units: mm)

 

Basic type / CG3BN tube inner diameter, stroke, with rubber bumper dimensional drawing

Basic type / CG3BN tube inner diameter, stroke, with rubber bumper dimensional drawing

 
Rod-end female thread / Long rod-end male thread dimensional drawing

Rod-end female thread / Long rod-end male thread dimensional drawing

 
Foot type / CG3LN tube inner diameter, stroke, with rubber bumper dimensional drawing

Foot type / CG3LN tube inner diameter, stroke, with rubber bumper dimensional drawing

  • *See the manufacturer's catalog for dimensional drawings and values other than those provided above.
Part Number
CDG3BN20-10
CDG3BN20-10-A93LS
CDG3BN20-10F
CDG3BN20-15-M9BL
CDG3BN20-20
CDG3BN20-20-M9B
CDG3BN20-20-M9BWZ
CDG3BN20-20F
CDG3BN20-25
CDG3BN20-25-A93
CDG3BN20-25-A93L
CDG3BN20-25-M9B
CDG3BN20-25-M9BL
CDG3BN20-25-M9BM
CDG3BN20-25-M9BW
CDG3BN20-25-M9N
CDG3BN20-25F
CDG3BN20-25F-M9BL
CDG3BN20-25F-M9PL
CDG3BN20-25G
CDG3BN20-25G-A93L
CDG3BN20-30
CDG3BN20-30-A93LS
CDG3BN20-30-M9BL
CDG3BN20-30-M9BM
CDG3BN20-30F-A93
CDG3BN20-30F-M9B
CDG3BN20-30G-M9B
CDG3BN20-35
CDG3BN20-35-M9BL
CDG3BN20-40
CDG3BN20-40-M9B
CDG3BN20-40-M9BL
CDG3BN20-40F
CDG3BN20-40G
CDG3BN20-45
CDG3BN20-45F
CDG3BN20-45F-M9N
CDG3BN20-48
CDG3BN20-48-M9BS
CDG3BN20-48G
CDG3BN20-48G-M9B
CDG3BN20-48G-M9BLS
CDG3BN20-48G-M9BS
CDG3BN20-49
CDG3BN20-50
CDG3BN20-50-A90L
CDG3BN20-50-C73C
CDG3BN20-50-M9B
CDG3BN20-50-M9BL
CDG3BN20-50-M9BLS
CDG3BN20-50-M9BW
CDG3BN20-50-M9BWL
CDG3BN20-50-M9N
CDG3BN20-50-M9NL
CDG3BN20-50F
CDG3BN20-50F-A93
CDG3BN20-50F-A93L
CDG3BN20-50F-A93S
CDG3BN20-50F-M9B
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipCylinder (Tube) Inner Diameter
(Ø)
Stroke
(mm)
Specifications Auto Switches Lead Wire The number of the switches Type of Mount Support Rod Tip Shape

-

1 Piece(s) Quote 2010Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2010Built-in magnetA9331Basic typeMale thread

-

1 Piece(s) Quote 2010Built-in magnetWithout switch--Basic typeFemale Thread

-

1 Piece(s) Quote 2015Built-in magnetM9B32Basic typeMale thread

-

1 Piece(s) Quote 2020Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2020Built-in magnetM9B0.52Basic typeMale thread

-

1 Piece(s) Quote 2020Built-in magnetM9BW52Basic typeMale thread

-

1 Piece(s) Quote 2020Built-in magnetWithout switch--Basic typeFemale Thread

SGD 78.28

1 Piece(s) 46 Day(s) 2025Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetA930.52Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetA9332Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetM9B0.52Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetM9B32Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetM9B12Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetM9BW0.52Basic typeMale thread

-

1 Piece(s) Quote 2025Built-in magnetM9N0.52Basic typeMale thread

SGD 78.28

1 Piece(s) 46 Day(s) 2025Built-in magnetWithout switch--Basic typeFemale Thread

SGD 184.45

1 Piece(s) 46 Day(s) 2025Built-in magnetM9B32Basic typeFemale Thread

-

1 Piece(s) Quote 2025Built-in magnetM9P32Basic typeFemale Thread

-

1 Piece(s) Quote 2025Built-in magnetWithout switch--Basic typeMale thread, long

-

1 Piece(s) Quote 2025Built-in magnetA9332Basic typeMale thread, long

-

1 Piece(s) Quote 2030Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2030Built-in magnetA9331Basic typeMale thread

-

1 Piece(s) Quote 2030Built-in magnetM9B32Basic typeMale thread

-

1 Piece(s) Quote 2030Built-in magnetM9B12Basic typeMale thread

-

1 Piece(s) Quote 2030Built-in magnetA930.52Basic typeFemale Thread

-

1 Piece(s) Quote 2030Built-in magnetM9B0.52Basic typeFemale Thread

-

1 Piece(s) Quote 2030Built-in magnetM9B0.52Basic typeMale thread, long

-

1 Piece(s) Quote 2035Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2035Built-in magnetM9B32Basic typeMale thread

-

1 Piece(s) Quote 2040Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2040Built-in magnetM9B0.52Basic typeMale thread

-

1 Piece(s) Quote 2040Built-in magnetM9B32Basic typeMale thread

-

1 Piece(s) Quote 2040Built-in magnetWithout switch--Basic typeFemale Thread

-

1 Piece(s) Quote 2040Built-in magnetWithout switch--Basic typeMale thread, long

-

1 Piece(s) Quote 2045Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2045Built-in magnetWithout switch--Basic typeFemale Thread

-

1 Piece(s) Quote 2045Built-in magnetM9N0.52Basic typeFemale Thread

-

1 Piece(s) Quote 2048Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2048Built-in magnetM9B0.51Basic typeMale thread

-

1 Piece(s) Quote 2048Built-in magnetWithout switch--Basic typeMale thread, long

-

1 Piece(s) Quote 2048Built-in magnetM9B0.52Basic typeMale thread, long

-

1 Piece(s) Quote 2048Built-in magnetM9B31Basic typeMale thread, long

-

1 Piece(s) Quote 2048Built-in magnetM9B0.51Basic typeMale thread, long

-

1 Piece(s) Quote 2049Built-in magnetWithout switch--Basic typeMale thread

SGD 82.25

1 Piece(s) 46 Day(s) 2050Built-in magnetWithout switch--Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetA9032Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetC73C0.52Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9B0.52Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9B32Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9B31Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9BW0.52Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9BW32Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9N0.52Basic typeMale thread

-

1 Piece(s) Quote 2050Built-in magnetM9N32Basic typeMale thread

SGD 82.25

1 Piece(s) 46 Day(s) 2050Built-in magnetWithout switch--Basic typeFemale Thread

-

1 Piece(s) Quote 2050Built-in magnetA930.52Basic typeFemale Thread

-

1 Piece(s) Quote 2050Built-in magnetA9332Basic typeFemale Thread

-

1 Piece(s) Quote 2050Built-in magnetA930.51Basic typeFemale Thread

-

1 Piece(s) Quote 2050Built-in magnetM9B0.52Basic typeFemale Thread

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Basic Information

Cylinder Operation Method Double Acting Rod Operation Method Single Rods Main Body Shape Standard
Additional Function Standard Environment, Applications Standard Cushion Rubber cushion
Operating Pressure(MPa) 0.05 to 0.7

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